(1)    Any city which has adopted the provisions of ss. 64.25 to 64.36 may abandon the same and reorganize under ch. 62 or ss. 64.01 to 64.14, or under a home rule charter by proceeding in accordance with s. 64.25.

   (2)   The common council of any city which is first elected after such city abandons the commission plan of government shall fix the salaries of all city officers therein in the same manner as when a city is first incorporated.

   (3)   The common council of any such city that has abandoned the commission form of government and before effective reorganization under ch. 62, may by an ordinance adopted by a two-thirds vote of all its members, provide that the membership of the common council to be first elected upon such reorganization shall consist of one alderperson from each aldermanic district. Thereafter the membership of the council shall not be increased or decreased except as provided in s. 62.09 (1) (b).